Paper cone.



W. T. WILSON.

PAPER CONE,

APPLICATION FILED FEB. 18, I916.

191 51% Patented Jan. 9, 1917.

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Specification of Letters Patent.

jPatented Jan. 9, 1917.

Application filed February 18, 1916. Serial No. 79,103.

pertains tomake and use the same.

This invention relates to paper cones and has for its object to provide a cone which will be applicable for wide general uses, but

especially for use as a cushioning means for the bursting charges of shells.

With these and other objects in view, the invention consists in. the novel details of construction and combination of parts, all as will be more fully hereinafter disclosed and particularly pointed out in the claims.

Referring to the accompanying drawings forming a part of this specification and in which like numerals designate like parts in all the views: Figure 1 is a diagrammatic partly sectional, partly perspective view illustrating a method of making the paper cone; Fig. 2 is a diagrammatic sectional view of a paper cone, as it leaves the mechanism shown in Fig, 1; Fig. 3 is an enlarged perspective view of the cone shown in Fig.

i 2; Fig. 4 is a plan view of the finished cone suitable for use in shells; and Fig. 5 is a diagrammatic partly sectional view of a shell with the cone shown in Fig. 4 acting as a cushion for the bursting charge.

lindicates the feed screw of any suitable lathe, 2 any suitable support for the cutting knives 3 and l and 5. any suitablerod on which the cone may be wmlnd and which is adapted to be held in the head and tail stocks, (not shown), so that the same may be conveniently revolved. The knives 3 and 4: are moved by the feed screw through connections not illustrated, and may be rotated from any suitable source of power not-shown. The said knives as they are fed in a direction parallel to the rod 5, slit the paper 6, as illustrated in Fig. 1, while the same is being wound upon the rod. 5. In

' other words, it will be understood that the paper such as 6 of a suitablewidth is wound in one or more layers 7 upon the rod 5, whereupon after a suitable thickness of layers 8 has been obtained, the knives 3 and 4 are brought to the paper 6 and connected to the feed screw, whereupon the said paper is slit as at 9, and as the said knives are fed along the axis of the lathe under the influence of the feed screw, the slit portion 10 of .the paper becomes'progressively narrower until it finally becomes a mere strip such as 11, which surrounds the base 12 of the cone. The said slitted strip 10, as it is Wound up to form the cone, leaves its edges 14 in stepped relation to each other, as is best illustrated in Fig. 2. The successive layers may be held in place by any suitable manner as by the application of adhesives. After the cone has beenthus built up, as illustrated in Figs. 2 and 3, it may be subjected to a polishing or grinding operation by which the edges 14 are removed and a smoothsurface such as 15, in Fig. 4:, is provided. This polishing operation is especially desirable if the cone is ,to accurately fit a space of given dimensions, for example, the curved forward ends of the cavities found in military shells. When the'cone 16 is to be thus used, the rod 5 may be cut off at the base of the cone and also rounded off at the point 17 thereof, so that the exterior of the cone forms one smooth continuous surface.

In loading modern military shells having cavities with curved forward ends, the bursting charges 18 thereof do not always fill with exactness the extreme forward ends of the cavities and it results from this that upon impact the said bursting charges 18 are thrown violently forward into said curved forward ends whereupon the said bursting charges are liable to prematurely detonate or explode. Inorder'to avoid this defect cones of wood are sometimes placed in the said curved forward ends of the cavities, so that the bursting charge upon impact will cushion on said cones and the above mentioned premature detonation or explosion be thus avoided. The wooden cones, however, are not only expensive to make, but they are'found to be uncertain in use, owing to the fact that they crack and the edges chip 05, so that the particles of the loose and subject to premature explosion or detonation. By making the. said cones 16v of paper, however, and in the manner above disclosed, an exceedingly solid, accurately fitting cone is. produced and at a relatively small cost so that the above dangers of premature explosion or detonation are entirely avoided. When the cone is used for other purposes, it may be of course finished oif in 0' cone is really composed of a plurality of a manner suitable for the special purpose in view. n V

It will be observed that thepitch of the cone'can be regulated by the pitch of the screw 1. That is to say, the higher the pitch of the screw 1, the faster will the knives 3 and 4 be fedalong the axis of the cone and therefore, the quicker will the strip 10 be reduced to the ultimate width as indicated by the edge 11, and therefore, the shallower will be the base 12 of the cone. On the other hand, if the pitch of the screw is reduced, the more layers of paper will be applied to the cone and therefore the deeper will be.

the base thereof.

In all cases it will be observed that the layers of a continuous strip of paper convolutely wound around the member 5 and that the pitch of the. cone is obtained by continuously feeding the knives 3 ,and l along the axis of the cone and thus continuously rendering the strip 10 more and more narrow as the cone is built up.

It is obvious that those skilled in the art. may vary the details of construction, as well as the process of making the article without departing from the spirit of the inven-' layers being successively-narrower fro'm'the inside toward the outside of the cone, where by one of the edges of said strip forms the base, and the other edge forms the inclined surface of said cone and a wooden center member having a rounded outer end completing the extreme point of said cone, substantially as described.

2. A paper cone comprising a center member and acontinuous strip of paper con; volutely wound in layers around said center member, said layersbeing successively narrower from the inside toward the outside of the cone, whereby one of the edges of said strip forms the base; and the other edge forms the inclined surface of same, cone, substantially as described.

3. A paper cone comprising a center mem ber of wood and a continuous strip of paper convolutely woundin layers around said center member, said layers being. successively narrower from the inside toward the outside of the cone, whereby one of the edges of said strip forms the base, and the other edge forms the inclined surface of jsaid cone; and saidother edge or inclinedsurface being smoothed off to form 'a substantially continuous surface, substantially as described.

In testimony whereof I affix my signature,

in presence of two Witnesses.

WYLE T. WILSON. Witnesses:

EDWARD MILLER,

M. F. McIn'rYRE. 

